mercredi 8 novembre 2017

How can I get onCheckedChanged working on checkboxes in my listview?

I have an array of checkboxes in a listview, one checkbox per row. When any of these checkboxes is checked I want to display a toast message.

This checkbox function is called addListenerToCheckBox();, it's in my onCreate:

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_new_contact);

        etc....

        addListenerToCheckBox();

        }

As stated the checkbox is in a row in my listview so I inflate that xml, phone_inflate_listview, separately from my main xml, which is activity_new_contact. Here is phone_inflate_listview:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://ift.tt/nIICcg"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://ift.tt/GEGVYd"
    android:orientation="horizontal">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_weight="6"
        android:layout_margin="5dp"
        android:paddingLeft="10dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="10dp"
            android:id="@+id/name"
            android:layout_marginTop="10dp"
            android:text="User name"
            android:textSize="18sp" />

    </LinearLayout>


    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_weight="1"
        android:layout_margin="5dp"
        android:paddingLeft="5dp"
        >

        <CheckBox
            android:id="@+id/checkBoxContact"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:checked="false"
            android:clickable="true"
 />

    </LinearLayout>

</LinearLayout>

And in a function outside my onCreate I have addListenerToCheckBox():

public void addListenerToCheckBox() {
    //for the checkbox

        LayoutInflater layoutInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View view = layoutInflater.inflate(R.layout.phone_inflate_listview, null);
        final CheckBox checkBox2 = (CheckBox)view.findViewById(R.id.checkBoxContact);

    checkBox2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener()
    {  @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
        {
            if ( isChecked )
            {
                // perform logic
                Toast.makeText(NewContact.this, "isChecked - " + checkBox2.isChecked(), Toast.LENGTH_SHORT).show();
            }

        }
    });}

My activity loads ok, but I'm not getting any toast message when checkbox is clicked. Can you tell me why not please? I have spent a good few hours trying to fix this problem.

I also tried stuff like:

 public void addListenerToCheckBox() {
        //for the checkbox

        View view = null;
        LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = inflater.inflate(R.layout.phone_inflate_listview, null);

        checkBox2 = (CheckBox)findViewById(R.id.checkBoxContact);


        checkBox2.setOnClickListener(
                new View.OnClickListener() {

                    @Override
                    public void onClick(View v) {
                        CheckBox cb = (CheckBox) v ;
                        SelectPhoneContact data = (SelectPhoneContact) cb.getTag();

                        //loop through the Matching Contacts
                         int count = MatchingContactsAsArrayList.size();

                        for (int i = 0; i < count; i++) {
                        //for each Matching Contacts row in the listview
                        LinearLayout itemLayout = (LinearLayout) listView.getChildAt(i); // Find by under LinearLayout
                        //for each Matching Contacts checkbox in the listview
                        CheckBox checkbox = (CheckBox) itemLayout.findViewById(R.id.checkBoxContact);
                        //get the other data related to the selected contact - name and number
                        SelectPhoneContact data = (SelectPhoneContact) checkbox.getTag();

                        Toast.makeText(NewContact.this,
                                "Clicked on Checkbox: " + data.getPhone() +
                                        " is " + cb.isChecked(),
                                Toast.LENGTH_LONG).show();
                        data.setSelected(cb.isChecked());


                             }
                           }
                          });

But no joy :(




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